Function niffler::get_writer

pub fn get_writer<'a>(
    out_stream: Box<dyn Write + 'a>, 
    format: Format, 
    level: Level
) -> Result<Box<dyn Write + 'a>, Error>

Create a new writable stream with the given compression format and level.

Example

use std::io::Read;
use niffler::{Error, get_writer, compression};

let mut buffer = vec![];
{
  let mut writer = niffler::get_writer(Box::new(&mut buffer), compression::Format::Gzip, compression::Level::One)?;
  writer.write_all("I'm compress in gzip\n".as_bytes())?
}

let mut contents = Vec::new();
buffer.as_slice().read_to_end(&mut contents)?;

assert_eq!(contents, vec![
        0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0xff, 0xf3, 0x54, 0xcf, 0x55,
        0x48, 0xce, 0xcf, 0x2d, 0x28, 0x4a, 0x2d, 0x2e, 0x56, 0xc8, 0xcc, 0x53, 0x48, 0xaf,
        0xca, 0x2c, 0xe0, 0x02, 0x00, 0x45, 0x7c, 0xf4, 0x10, 0x15, 0x00, 0x00, 0x00
        ]);